You can see most of the images on the Proud Gallery site (with the link above) but they’ve set it up so that you can’t copy the images which I guess I understand even if the only reason I wanted to use any of them was to promote the exhibition (and Thin Wild Mercury, the book which goes with it). However it’s hardly likely that anyone planning on buying one of the prints (they’re all on sale at the gallery) is going to change their mind because they discover that they can copy an image off the web and print it – after all if you’re prepared to pay between £1,000 & £20,000 for a photo (which is how much they’re going for) it seems unlikely that they’ll be bothered if an unsigned, low-quality version is available for free.